90 
BIBLIOGRAPHY. 
For March : — 
Volvox globator. Cleansing Old Slides. Improvement in Microscope-stands. 
Plant Crystals. Habirshaw's Catalogue of the Diatomacese. Microscopic Life of 
the Carboniferous Limestone. 
For April : — 
The ‘American Microscopical Journal.’ Machine for Mounting. A New 
Posting-box for Slides. Actinocyclus Berkleyi. Sap Crystals. Cleansing 
Diatomacese. The Kesolution of Diatom Tests. 
Nature for the 21st and 28th March contains articles on the 
“ Sources of Light ” and “ Keflection of Light,” “ from a forthcoming 
volume of the ‘ Nature Series ’ — Light : a Series of Simple, Enter- 
taining, and Inexpensive Experiments in the Phenomena of Light, 
for the Use of Students of Every Age. By Alfred M. Mayer and 
Charles Barnard.’ ” 
The Popular Science Keview for April contains an article by 
Mr. W. Saville Kent, F.L.S., entitled “ A New Field for the Micro- 
scopist ” (the Flagellate Protozoa). 
The Quarterly Journal of Science for April contains : — 
On the Movement of Microscopic Particles suspended in Liquids. By Pro- 
fessor W. Stanley Jevons, LL.D., M.A., F.K.S. 
The Journal of the Quekett Microscopical Club (No. 35) 
contains : — 
The Ordinary Condenser Improved, or “ Circular” Illumination Superseded. 
By W. K. Bridgman, L.D.S. 
The President’s Address, together with the usual Proceedings, the Com- 
mittee’s Keport for 1877, and List of Members, Kules, &c. 
The American Journal of Microscopy and Popular Science 
for January contains : — 
Description of a New Species of Argulus. By D. S. Kellicott. 
On a New Ehizopod {Lobularia marina). By Professor R. Hitchcock. 
Cox’s Self-centering Turn-table. 
Bullock’s New Microscope. 
Mounting on Wax. 
The New York Microscopical Society. 
Fraudulent Lenses. 
For February : — 
Rivet’s Microtome and its Use. By Dr. Johannes Grbnland. (Translated 
from the ‘ Zeitschrift fiir Mikroskopie.’) 
Elementary Papers on Objectives and some Accessories (continued). By Pro- 
fessor Hitchcock. — II. Cover Correction. 
Discursory Thoughts relating to the Use and Abuse of the Microscope. An 
Address delivered by Professor J. Edwards Smith before the Dunkirk Micro- 
scopical Society, October 31st, 1876. 
The Amplifier. By Gustavus Devron, M.D. 
For March : — 
The conclusion of Professor J. Edwards Smith’s ‘ Discursory Thoughts.’ 
High-angled Objectives, with Wenham’s Binocular. 
The Birth of a Tree-hopper. By Rev. J. L. Zabriskie. 
Keith’s Heliostat. 
A Trap for Catching Diatoms and Animalcules. 
Finishing Slides. 
The Combination Whirling Table. 
A New Marking Box for Slides. 
